CN103230912A - Integrated device and method used for detecting COD (Chemical Oxygen Demand) and cleaning cuvette automatically - Google Patents
Integrated device and method used for detecting COD (Chemical Oxygen Demand) and cleaning cuvette automatically Download PDFInfo
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- CN103230912A CN103230912A CN2013101280908A CN201310128090A CN103230912A CN 103230912 A CN103230912 A CN 103230912A CN 2013101280908 A CN2013101280908 A CN 2013101280908A CN 201310128090 A CN201310128090 A CN 201310128090A CN 103230912 A CN103230912 A CN 103230912A
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Abstract
The invention discloses an integrated device and method used for detecting COD (Chemical Oxygen Demand) and cleaning a cuvette automatically. A water spraying structure is arranged at an upper opening part of the cuvette; the upper part of the water spraying structure is connected to an automatic pump through a water flow guide pipe; through the water flow guide pipe, the automatic pump is respectively connected to a distilled water bottle containing distilled water after passing through a distilled water electromagnetic valve and a cleaning agent bottle containing a cleaning agent after passing through a cleaning agent electromagnetic valve; ultrasonic cleaning devices are tightly adhered at the outer sides of two pieces of ground glass of the cuvette; and an optical detection device is arranged aside the optical outer side surface of the cuvette. A single-chip control system controls the distilled water electromagnetic valve, the cleaning agent electromagnetic valve, a waste liquid pond electromagnetic valve, the ultrasonic cleaning devices, the optical detection device and the automatic pump to work; the distilled water or cleaning agent is input and sprayed on the inner wall of the cuvette; the cuvette is cleaned with the cooperation of the ultrasonic cleaning device; and after the cleaning, the COD detection is finished when a photoelectric detection device works. Therefore, the cleaning quality is guaranteed, an exact and reliable measuring value is obtained, and a high automation degree is achieved.
Description
Technical field
The present invention relates to the COD(COD) detection technique and be used for the cleaning device that COD detects cuvette specifically is to detect the automatic cleaning of cuvette and detect the device of COD automatically and cuvette cleaning method, COD detection method for COD.
Background technology
Chemical oxygen demand COD is an important indicator estimating the water pollution degree.COD detection analytical method commonly used at present has quick resolution method, spectrophotometer method, colorimetric method etc., and these detect working service and the cleaning that all relates to cuvette in analytical methods.Whether the cuvette cleaning is one of factor of the influence mensuration COD degree of accuracy.The principle that cuvette cleans is: the one, can not damage structure and the light transmission of cuvette, and the 2nd, can reach the clean effect as before of cuvette.The cleaning of contrastive colours ware under the laboratory condition all is directly to wash with distilled water, perhaps adopts the method for neutralization dissolving to carry out rinse earlier, uses a large amount of distilled water flushings again, the matting complexity, and scavenging period is long.And owing to use not cleaning often or because of after using of cuvette, usually having the wall that coloring matter sticks to cuvette, long-term accumulation and oxidation meeting make the color that general washing methods is difficult for removing on the cuvette band.Usually judging the clean-up performance of cuvette, all is the experience that relies on operating personnel, and just the cuvette inwall occurring inevitably still has chemical medicinal residue, the unconspicuous situation of coloured residual discovery for this, influences cleaning quality.In the artificial cleaning process, under careless situation, use the transparent surface that hand directly touches cuvette, the degree of accuracy of measuring COD is produced measure error.In addition, artificial working strength of cleaning is big, inefficiency, and the cleaning solution use amount is big, the requirement of can't reach automatic cleaning, saving cost, clean environment firendly.
Summary of the invention
The objective of the invention is for overcoming the defective of prior art, provide a kind of have single-chip computer control system, ultrasonic cleaning technology be applied to COD detect the on-line auto-cleaning of cuvette and the integrated device of online automatic detection COD, solve the problem that the cuvette inwall cleans clean and COD accuracy of measurement difference; Another object of the present invention provides the on-line auto-cleaning method of cuvette and the online automatic detection method of COD, realizes the automatic cleaning of cuvette and the online accurate detection of COD, reduces manually-operated, shortens and cleans detection time, saves cost.
The present invention is used for detecting automatically COD and is achieved through the following technical solutions with the integrating device that cleans cuvette: have cuvette, uncovered position is provided with water spraying structure on cuvette, the bottom of water spraying structure is positioned at cuvette inside, the top of water spraying structure connects automatic pump by flow tube, automatic pump connects the distilled water bottle that fills distilled water through the distilled water magnetic valve respectively by flow tube, connect the cleaning agent bottle that fills cleaning agent through the cleaning agent magnetic valve, the bottom of cuvette connects waste liquid pool by discharging tube through the waste liquid pool magnetic valve, ultrasonic cleaning equipment all is close in two frosted glass outsides of cuvette, the other optical detection apparatus that is provided with of the optics lateral surface of cuvette; Described automatic pump, distilled water magnetic valve, cleaning agent magnetic valve, waste liquid pool magnetic valve, ultrasonic cleaning equipment and optical detection apparatus are connected single-chip computer control system respectively with different ports.
The technical scheme that adopts for the cuvette auto-cleaning method of the integrating device that detects COD and cleaning cuvette automatically of the present invention is: by single-chip computer control system control distilled water magnetic valve, the cleaning agent magnetic valve, the waste liquid pool magnetic valve, ultrasonic cleaning equipment, optical detection apparatus and automatic pump work, distilled water magnetic valve and cleaning agent magnetic valve are under the work of automatic pump, input distilled water or cleaning agent are to flow tube, flabellum in the water spraying structure rotates under the promotion of hydraulic pressure, distilled water or cleaning agent are sprayed on the cuvette inwall, and the contrastive colours ware cleans under the cooperation of ultrasonic cleaning equipment.Specifically as follows:
A, single-chip computer control system open system timer, open the waste liquid pool magnetic valve simultaneously, drain the waste liquid in the cuvette, when reaching the predefined timing t1 of single-chip computer control system, open distilled water magnetic valve, automatic pump, inject distilled water, the flabellum that current promote in the water spraying structure rotates, and current is sprayed onto the cuvette inwall carries out the flushing first time;
B, when reaching the timing t2 of setting, close automatic pump, distilled water magnetic valve and waste liquid pool magnetic valve, open cleaning agent magnetic valve, automatic pump, cleaning agent is sprayed onto the cuvette inwall;
C, when reaching the timing t3 of setting, open ultrasonic cleaning equipment and begin ultrasonic wave and clean; When reaching the timing t4 of setting, close ultrasonic cleaning equipment;
D, open the waste liquid pool magnetic valve, discharge the waste liquid in the cuvette, when reaching the timing t5 of setting, open distilled water magnetic valve, automatic pump, inject distilled water, current are sprayed onto the cuvette inwall carry out second time and wash;
E, when reaching the timing t6 of setting, close automatic pump, distilled water magnetic valve, waste liquid pool magnetic valve, finish automatic cleaning.
The technical scheme that adopts for the COD automatic testing method of the integrating device that detects COD and cleaning cuvette automatically of the present invention comprises the steps:
A, after having cleaned cuvette, single-chip computer control system is closed the waste liquid pool magnetic valve, water sample to be measured is directly injected the contrastive colours ware from the last opening end of cuvette carry out rinse;
B, when reaching the predefined timing t7 of single-chip computer control system, open the effluent discharge of waste liquid pool magnetic valve; Reach setting drain the timing t8 of waste liquid in the cuvette time, close the waste liquid pool magnetic valve again;
C, manually inject water sample to be measured in the cuvette, when reaching the stable timing t9 of the injection water sample of setting, single-chip computer control system is opened photoelectric detection system, calculates automatically and obtains the water-quality COD value;
D, when reaching the timing t10 of setting, detection finishes, and closes photoelectric detection system, opens the discharge opeing of waste liquid pool magnetic valve simultaneously.
Compared with the prior art the present invention has following advantage:
1, integrating device of the present invention adopts a kind of current driven rotary type water spraying structure, need not the driving of motor, the flabellum that the current that utilize automatic pump to be drawn into flow tube promote water spraying structure rotates, and distilled water or cleaning agent are sprayed onto the cuvette inwall, reduces the complicated in mechanical structure degree that sprays structure
2, flow tube arrange and the quantity of automatic pump adopts multiplexed, only use an automatic pump, share flow tube, reduce production cost, reduce the complicated in mechanical structure degree of device, under the cooperation of different magnetic valves, with distilled water or cleaning agent difference inspiration flow tube, the hydraulic drives of generation is sprayed arrangement works simultaneously.
3, integrating device of the present invention integrates ultrasonic cleaning equipment and optical detection apparatus, rationally utilize optics side and the frosted glass side of cuvette, play the purpose of apparatus structure Highgrade integration, automation, intellectuality, microminiaturization, the conventional COD detector that is different from present use needs manually-operated to move cuvette to the checkout gear of appointment.
4, integrating device of the present invention adopts a cover single-chip computer control system, can control the workpiece of cleaning device effectively, finishes the mensuration of water-quality COD parameter and the cleaning of cuvette automatically, reduces manual intervention, and operating efficiency is provided.
5, compare with other cleaning device, integrating device of the present invention does not have to install the device that dries up the cuvette inwall, reduces hardware complexity, reduces hardware cost, can finish COD and measure under the situation that does not dry up cuvette.
6, integrating device of the present invention is simple in structure, and mechanical component is few, can be issued to the purpose of real-time control in the control of single-chip microcomputer, increases work efficiency, and shortens scavenging period, saves energy consumption, guarantees cleaning quality, reduces production costs.
7, integrating device of the present invention, the processing speed that detects the water-quality COD parameter is fast, measured value accurately and reliably, manually-operated is few, the automaticity height.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the main TV structure schematic diagram that the present invention is used for detecting COD automatically and cleans the integrating device of cuvette, has dispensed single-chip computer control system 22 among the figure;
Fig. 2 is the mounting structure enlarged drawing of the water spraying structure 15 shown in Fig. 1;
Fig. 3 is that the master of the water spraying structure 15 shown in Fig. 1 looks enlarged drawing;
Fig. 4 is the vertical view of the rotation fixed axis 18 shown in Fig. 3, diameter support 19, flabellum 20;
Fig. 5 is the funnel clamp bracket 16 shown in Fig. 2 and the vertical view of regulating clamp nut 17;
Fig. 6 is the photoelectric detection system 21 among the cuvette fixed support 10 shown in Fig. 1 and the present invention, the mounting structure enlarged drawing of ultrasonic cleaning equipment 8;
Fig. 7 is the photoelectric detection system 21 among the cuvette fixed support 10 shown in Fig. 1 and the present invention, the schematic top plan view of ultrasonic cleaning equipment 8;
Fig. 8 is the johning knot composition that the present invention is used for detecting COD automatically and cleans the integrating device single-chip computer control system 22 of cuvette;
Fig. 9 is the flow chart that the present invention is used for detecting automatically COD and the auto-cleaning method of the integrating device that cleans cuvette.
The sequence number of each parts and title in the accompanying drawing: 1. distilled water bottle; 2. cleaning agent bottle; 3. waste liquid pool; 4. fixed base plate support; 5. setting support; 6. distilled water magnetic valve; 7. cleaning agent magnetic valve; 8. ultrasonic cleaning equipment; 8a, 8b. transducer; 9. waste liquid pool magnetic valve; 10. cuvette fixed support; 11. flow tube; 12. automatic pump; 13. cuvette clamp bracket; 14. cuvette; 15. water spraying structure; 16. funnel clamp bracket; 17. adjusting clamp nut; 18. rotation fixed axis; 19. diameter support; 20. flabellum; 21. photoelectric detection system; 21a, 21b. detection components; 22. single-chip computer control system; 23. LCD MODULE; 24. wireless data dispensing device; 25. infundibulate overcoat.
The specific embodiment
Shown in Fig. 1-8, the structure that the present invention is used for the integrating device of the automatic COD of detection and cleaning cuvette comprises distilled water bottle 1, cleaning agent bottle 2, waste liquid pool 3, distilled water magnetic valve 6, cleaning agent magnetic valve 7, waste liquid pool magnetic valve 9, automatic pump 12, ultrasonic cleaning equipment 8, water spraying structure 15, photoelectric detection system 21, each support and single-chip computer control system 22(MCU control system).
Referring to Fig. 1, fixed base plate support 4 is by horizontal fixed, the bottom of erectting support 5 is fixed on the fixed base plate support 4, the center fixed of erectting support 5 connects cuvette fixed support 10, cuvette fixed support 10 horizontal fixed, cuvette 14 is placed on the cuvette fixed support 10 of level, and cuvette 14 also is fixed on the setting support 5 by cuvette clamp bracket 13.Uncovered arranges water spraying structure 15 on cuvette 14.The top of water spraying structure 15 connects automatic pump 12 by flow tube 11, and the bottom of water spraying structure 15 is positioned at cuvette 14 inside.Automatic pump 12 connects distilled water bottle 1 and cleaning agent bottle 2 respectively by flow tube 11, fill distilled water in the distilled water bottle 1, fill cleaning agent in the cleaning agent bottle 2, flow tube 11 between automatic pump 12 and distilled water bottle 1 is installed distilled water magnetic valve 6, and the flow tube 11 between automatic pump 12 and cleaning agent bottle 2 is installed cleaning agent magnetic valve 7.Distilled water bottle 1 and cleaning agent bottle 2 all are placed on the fixed base plate support 4.Waste liquid pool 3 is set under cuvette fixed support 10, waste liquid pool 3 also is placed on the fixed base plate support 4, waste liquid pool 3 connects the bottom of cuvette 14 by discharging tube, bottom and the discharging tube between the waste liquid pool 3 at cuvette 14 are installed waste liquid pool magnetic valve 9, the discharging tube of cuvette 14 bottoms passes cuvette fixed support 10, and the waste liquid in the cuvette 14 is discharged in the waste liquid pool 3 by waste liquid magnetic valve 9.
Referring to the water spraying structure 15 shown in Fig. 2-5, water spraying structure 15 comprises infundibulate overcoat 25, funnel clamp bracket 16, clamp nut 17, rotation fixed axis 18, diameter support 19, flabellum 20.The top of infundibulate overcoat 25 is uncovered small ends, and the bottom is uncovered big end.Infundibulate overcoat 25 is connected uncovered small end by funnel clamp bracket 16 fixedly connected setting supports 5 with funnel clamp bracket 16.The cross section of uncovered big end is circular, the inside of uncovered big end is provided with a diameter support 19 and a rotation fixed axis 18, diameter support 19 is shaft-like, fixed diameter along uncovered big end, the two ends of diameter support 19 are fixed on the uncovered big end, and circle centre position and vertical fixing that rotation fixed axis 18 is positioned at uncovered big end are connected on the diameter support 19.There is multi-disc identical flabellum 20 uniform along the circumferencial direction of uncovered big end, the quantity of flabellum 20 can be selected to install as required, the centre bore of the flabellum 20 that multi-disc is identical all passes rotation fixed axis 18, guarantees that all flabellums 20 all can rotate freely around rotation fixed axis 18.Flabellum 20 is in the cavity of infundibulate overcoat 25, and flow tube 11 extend into the infundibulate overcoat 25 from the uncovered small end of infundibulate overcoat 25, until the top of flabellum 20.
Referring to Fig. 5, cuvette clamp bracket 13 and funnel clamp bracket 16 can adopt following clamp structure: the hollow space that the last opening end of cuvette 14 is passed cuvette clamp bracket 13, last uncovered cross-sectional periphery direction along cuvette 14 arranges several adjusting clamp nuts 17, adjusting clamp nut 17 passes the screw on the cuvette clamp bracket 13, by screwing clamp nut 17 cuvette 14 is clamped.The uncovered small end of infundibulate overcoat 15 passes the hollow space of funnel clamp bracket 16, cross-sectional periphery direction along infundibulate overcoat 15 uncovered small ends arranges several adjusting clamp nuts 17, adjusting clamp nut 17 passes the screw on the funnel clamp bracket 16, regulate the relative position that clamp nut 17 is used for adjusting infundibulate overcoat 15 and cuvette 14, by screwing clamp nut 17 infundibulate overcoat 15 is clamped.
Referring to the ultrasonic cleaning equipment 8 shown in Fig. 6-7 and optical detection apparatus 21, ultrasonic cleaning equipment 8 is miniature ultrasonic cleaning device, ultrasonic cleaning equipment 8 comprises supersonic generator and ultrasonic transducer 8a, 8b, utilizes the epoxy polyester closely to stick on the frosted glass outside of cuvette 14 respectively two transducer 8a, 8b.Epoxy polyester and cuvette 12 walls play the effect of oscillating plate, and hyperacoustic mechanical oscillation are delivered in the cleaning fluid rapidly.Transducer can convert the high-frequency signal that supersonic generator produces to continuously ultrasonic wave, by cuvette 14 inwalls hyperacoustic mechanical oscillation are moved in the cleaning fluid high speed, inwall at cuvette 14 produces cavitation phenomenon, utilize the dirt of the inwall of cavitation effect of ultrasonic waves contrastive colours ware 14 to impact, peel off the dispersion dirt, accelerate the dissolving of surface contaminants, strengthen cleaning action.Optical detection apparatus 21 is made of two detection components 21a, 21b, is installed in two optics lateral surface next doors of cuvette 14 respectively.
Referring to the structure that is connected with single-chip computer control system 22 shown in Figure 8, automatic pump 12, distilled water magnetic valve 6, cleaning agent magnetic valve 7, waste liquid pool magnetic valve 9, ultrasonic cleaning equipment 8 and optical detection apparatus 21 are connected single-chip computer control system 22 respectively with different ports, and single-chip computer control system 22 also connects LCD MODULE 24 and wireless data dispensing device 24 respectively.Single-chip computer control system 22 can be controlled operating frequency, the working time of ultrasonic cleaning equipment 8, and it is big with the density of vibrating in the solution that guarantees cuvette 14 to regulate relevant parameter, improves cleaning performance, reduces chemical medicinal residue.Single-chip computer control system 22 can be controlled optical detection apparatus 21, adopts novel optical system, finishes the mensuration of water-quality COD parameter.Single-chip computer control system 22 can be finished the matting of setting automatically according to the program that pre-sets according to operating process.
Referring to the structure chart of Fig. 1-8 and the flow chart of Fig. 9, when the present invention cleans for the integrating device that detects COD and cleaning cuvette automatically, controlled the duty of distilled water magnetic valves 6, cleaning agent magnetic valve 7, waste liquid pool magnetic valve 9, ultrasonic cleaning equipment 8, optical detection apparatus 21 and automatic pump 12 by single-chip computer control system 22.Distilled water magnetic valve 6 and cleaning agent magnetic valve 7 are under the work of automatic pump 12, input distilled water or cleaning agent are to flow tube 11, flabellum 20 in the water spraying structure 15 rotates under the promotion of certain hydraulic pressure, and distilled water or cleaning agent are sprayed on cuvette 14 inwalls; And contrastive colours ware 14 cleans in high quality under the cooperating of ultrasonic cleaning equipment 8.Inject the distilled water previous cleaning earlier, cooperate cleaning agent cleaning and strengthening clean result with ultrasonic cleaning equipment 8 again, wash again with distilled water at last.Each cleaning step time control has single-chip computer control system 22 timers to set, and matting is reliable continuously, guarantees the cleanliness factor of cleaning, can also shorten scavenging period, reduces hand labor intensity, work energy consumption and production cost.Specific as follows:
When cleaning, single-chip computer control system 22 open system timers are opened waste liquid pool magnetic valve 9 simultaneously, drain the waste liquid in the cuvette 14.(illustrate: the timing of single-chip computer control system 22 all is the actual value that records according to through experiment repeatedly, adds given estimated value after the big slightly side-play amount when reaching the predefined timing t1 of single-chip computer control system 22.Down with), open distilled water magnetic valve 6, automatic pump 12, inject distilled water, the flabellums 20 that current promote in the water spraying structure 15 rotate under the promotion of certain hydraulic pressure, current are sprayed onto cuvette 14 inwalls carry out first time and wash.When reaching the timing t2 of setting, close automatic pump 12, distilled water magnetic valve 6 and waste liquid pool magnetic valve 9.Then open cleaning agent magnetic valve 7, automatic pump 12, the same with the distilled water flushing method, cleaning agent is sprayed onto cuvette 14 inwalls, when reaching the timing t3 of setting, represent that a certain amount of cleaning agent has been injected in the cuvette 14.Open ultrasonic cleaning equipment 8, the beginning ultrasonic wave cleans, and when reaching the timing t4 of setting, closes ultrasonic cleaning equipment 8, and expression cuvette 14 has cleaned up.Open waste liquid pool magnetic valve 9 again, discharge the waste liquid in the cuvette 14, when reaching the timing t5 of setting, open distilled water magnetic valve 6, automatic pump 12, inject distilled water, current are sprayed onto cuvette 14 inwalls carry out the flushing second time, when reaching the timing t6 of setting, close automatic pump 12, distilled water magnetic valve 6, waste liquid pool magnetic valve 9.Under the control of single-chip computer control system 22, the automatic cleaning of cuvette 14 is finished smoothly like this, and overall process need not manual intervention, finishes in an orderly manner according to the cleaning process of setting.
The present invention also can finish the detection of water-quality COD under the work of photoelectric detection system 21 for the integrating device that detects COD and cleaning cuvette automatically, detection method is as follows: after having cleaned cuvette 14, single-chip computer control system 22 is closed waste liquid pool magnetic valve 9, the open system timer, a certain amount of water sample to be measured is directly injected from the last opening end of cuvette 14, contrastive colours ware 14 carries out rinse, when reaching the predefined timing t7 of single-chip computer control system 22, open 9 effluent discharges of waste liquid pool magnetic valve, when reaching the timing t8 of setting, expression has drained the waste liquid in the cuvette interior 14.Close waste liquid pool magnetic valve 9 again, manually in cuvette 14, inject water sample to be measured, reach the timing t9 of setting, the water sample that expression is injected is stable, single-chip computer control system 22 is opened photoelectric detection system 21, automatically calculate and obtain the water-quality COD value, and determination data is shown by LCD MODULE 23, perhaps send to receiving terminal through wireless data dispensing device 24.When reaching the timing t10 of setting, expression detects and finishes, and closes photoelectric detection system 21, opens 9 discharge opeings of waste liquid pool magnetic valve simultaneously.
Claims (8)
1. one kind is used for detecting automatically COD and the integrating device that cleans cuvette, has cuvette (14), it is characterized in that: be provided with water spraying structure (15) at the last uncovered position of cuvette (14), the bottom of water spraying structure (15) is positioned at cuvette (14) inside, the top of water spraying structure (15) connects automatic pump (12) by flow tube (11), automatic pump (12) connects the distilled water bottle (1) that fills distilled water through distilled water magnetic valve (6) respectively by flow tube (11), connect the cleaning agent bottle (2) that fills cleaning agent through cleaning agent magnetic valve (7), the bottom of cuvette (14) connects waste liquid pool (3) by discharging tube through waste liquid pool magnetic valve (9), ultrasonic cleaning equipment (8) all is close in two frosted glass outsides of cuvette (14), the other optical detection apparatus (21) of establishing of the optics lateral surface of cuvette (14); Described automatic pump (12), distilled water magnetic valve (6), cleaning agent magnetic valve (7), waste liquid pool magnetic valve (9), ultrasonic cleaning equipment (8) and optical detection apparatus (21) are connected single-chip computer control system (22) respectively with different ports.
2. integrating device according to claim 1 is characterized in that: water spraying structure (15) comprises infundibulate overcoat (25), rotation fixed axis (18), diameter support (19), flabellum (20); The top of infundibulate overcoat (25) is uncovered small end, the bottom is that the cross section is circular uncovered big end, diameter support (19) is connected on the uncovered big end along the fixed diameter of uncovered big end, the circle centre position of uncovered big end is that vertical fixing is connected the rotation fixed axis (18) on the diameter support (19), the identical flabellum (20) of multi-disc that all passes rotation fixed axis (18) is distributed in the infundibulate overcoat (25) along the circumferencial direction of uncovered big end, all flabellums (20) all can rotate freely around rotation fixed axis (18), and flow tube (11) extend into the infundibulate overcoat (25) top until flabellum (20) from the uncovered small end of infundibulate overcoat (25).
3. integrating device according to claim 1, it is characterized in that: cuvette (14) is placed on the cuvette fixed support (10) of level, cuvette fixed support (10) connects the centre of erectting support (5), erect the fixed base plate support (4) of the fixedly connected level in bottom of support (5), cuvette (14) is by the fixedly connected setting support of cuvette clamp bracket (13) (5); Distilled water bottle (1), cleaning agent bottle (2), waste liquid pool (3) all are placed on the fixed base plate support (4).
4. integrating device according to claim 2, it is characterized in that: infundibulate overcoat (25) is by the fixedly connected setting support of funnel clamp bracket (16) (5), the uncovered small end of infundibulate overcoat (15) passes the hollow space of funnel clamp bracket (16), cross-sectional periphery direction along the uncovered small end of infundibulate overcoat (15) arranges several adjusting clamp nuts (17), adjusting clamp nut (17) passes the screw on the funnel clamp bracket (16), adjusts the relative position of infundibulate overcoat (15) and cuvette (14) and clamps infundibulate overcoat (15).
5. integrating device according to claim 3, it is characterized in that: the last opening end of cuvette (14) passes the hollow space of cuvette clamp bracket (13), last uncovered cross-sectional periphery direction along cuvette (14) arranges several adjusting clamp nuts (17), and the screw that adjusting clamp nut (17) passes on the cuvette clamp bracket (13) clamps cuvette (14).
6. cuvette auto-cleaning method of integrating device according to claim 1, it is characterized in that: by single-chip computer control system (22) control distilled water magnetic valve (6), cleaning agent magnetic valve (7), waste liquid pool magnetic valve (9), ultrasonic cleaning equipment (8), optical detection apparatus (21) and automatic pump (12) work, distilled water magnetic valve (6) and cleaning agent magnetic valve (7) are under the work of automatic pump (12), input distilled water or cleaning agent are to flow tube (11), flabellum (20) in the water spraying structure (15) rotates under the promotion of hydraulic pressure, distilled water or cleaning agent are sprayed on cuvette (14) inwall, and contrastive colours ware (14) cleans under the cooperation of ultrasonic cleaning equipment (8).
7. cuvette auto-cleaning method according to claim 6 is characterized in that specifically as follows:
A, single-chip computer control system (22) open system timer, open waste liquid pool magnetic valve (9) simultaneously, drain the waste liquid in the cuvette (14), when reaching the predefined timing t1 of single-chip computer control system (22), open distilled water magnetic valve (6), automatic pump (12), inject distilled water, the flabellum (20) that current promote in the water spraying structure (15) rotates, and current is sprayed onto cuvette (14) inwall carries out the flushing first time;
B, when reaching the timing t2 of setting, close automatic pump (12), distilled water magnetic valve (6) and waste liquid pool magnetic valve (9), open cleaning agent magnetic valve (7), automatic pump (12), cleaning agent is sprayed onto cuvette (14) inwall;
C, when reaching the timing t3 of setting, open ultrasonic cleaning equipment (8) beginning ultrasonic wave and clean; When reaching the timing t4 of setting, close ultrasonic cleaning equipment (8);
D, open waste liquid pool magnetic valve (9), discharge the waste liquid in the cuvette (14), when reaching the timing t5 of setting, open distilled water magnetic valve (6), automatic pump (12), inject distilled water, current are sprayed onto cuvette (14) inwall carry out the flushing second time;
E, when reaching the timing t6 of setting, close automatic pump (12), distilled water magnetic valve (6), waste liquid pool magnetic valve (9), finish automatic cleaning.
8. the COD automatic testing method of integrating device according to claim 1 is characterized in that comprising the steps:
A, after having cleaned cuvette 14, single-chip computer control system (22) is closed waste liquid pool magnetic valve (9), water sample to be measured is directly injected contrastive colours wares (14) from the last opening end of cuvette (14) carry out rinse;
B, when reaching the predefined timing t7 of single-chip computer control system (22), open waste liquid pool magnetic valve (9) effluent discharge; Reach setting drain the timing t8 of the interior waste liquid of cuvette (14) time, close waste liquid pool magnetic valve (9) again;
C, manually inject water sample to be measured in the cuvette (14), when reaching the stable timing t9 of the injection water sample of setting, single-chip computer control system (22) is opened photoelectric detection system (21), calculates automatically and obtains the water-quality COD value;
D, when reaching the timing t10 of setting, detection finishes, and closes photoelectric detection system (21), opens waste liquid pool magnetic valve (9) discharge opeing simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101280908A CN103230912A (en) | 2013-04-15 | 2013-04-15 | Integrated device and method used for detecting COD (Chemical Oxygen Demand) and cleaning cuvette automatically |
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| CN2013101280908A CN103230912A (en) | 2013-04-15 | 2013-04-15 | Integrated device and method used for detecting COD (Chemical Oxygen Demand) and cleaning cuvette automatically |
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| CN109827919A (en) * | 2019-04-15 | 2019-05-31 | 嘉兴学院 | A kind of Quick testing instrument and its detection method of chroming waste liquor trivalent chromium content |
| CN111570454A (en) * | 2020-05-28 | 2020-08-25 | 苏州国溯科技有限公司 | Automatic cleaning system and method suitable for spectral analysis instrument |
| WO2021258552A1 (en) * | 2020-06-22 | 2021-12-30 | 深圳市长隆科技有限公司 | Timed test system for water quality test device |
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| CN112317448A (en) * | 2020-09-30 | 2021-02-05 | 江苏爱康能源研究院有限公司 | Maintenance method of etching cleaning equipment for HJT solar cell |
| CN114798572A (en) * | 2022-05-11 | 2022-07-29 | 安徽恒益纺织科技有限公司 | Automatic cleaning device of air jet loom |
| CN117929305A (en) * | 2024-03-18 | 2024-04-26 | 四川鑫时探科技有限公司 | Sewage monitoring method and monitoring system |
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Application publication date: 20130807 |